If the point is that you can do it, then yea, you can also sideload apps on iOS. It's an immense pain, limited to X apps, but you can, and you could technically pay with 0% fee...
They are not “all over the OS”. There is a pop-up message that asks you if you want to allow the app to be used as an installer. That’s it.
You can find your way around, but you'll spend twice the amount of time doing the same tasks that you could easily do on apps. Also, bye bye bank apps, or any Android games
If you don't use your phone a lot, understandable, but for most people, nah, not doable
15% for the first $1M (USD) revenue earned by the developer each year
30% for earnings in excess of $1M (USD) revenue earned by the developer each year
I would imagine you also have the right not to act
Else... they can just force you to enter the code the same way as they can force you to put your finger on the screen... or force you to look at the screen
This^ but I often badly word it 😂